Block: Give traverse_and_serialize_block(s)
' post-callback access to block instance
#5525
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Both the
$pre_
and$post_callback
functions that are given as arguments totraverse_and_serialize_block(s)
receive a reference to the current block as its first argument. However, while any changes that the "pre" callback makes to the block are actually respected during serialization, the same isn't true for the "post" callback: Any changes that it makes are only applied after the block has already been serialized. For applications like#59412
, we probably want to change that.Testing instructions
The behavior is covered by the newly added unit test. You can verify that it fails on
trunk
by cherry-picking a8c6633 there, and runningnpm run test:php -- --group=blocks
.Trac ticket: https://core.trac.wordpress.org/ticket/59669
This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.